21462800

素因数分解:

$2^4\times 5^2\times {\mathrm{53657}}^1$

素因数の和:53675

約数の個数: 30

約数和(自身を含む): 51565338

約数和(自身を除く): 30102538

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53657, 107314, 214628, 268285, 429256, 536570, 858512, 1073140, 1341425, 2146280, 2682850, 4292560, 5365700, 10731400, 21462800]

約数ペア:

[(1, 21462800), (2, 10731400), (4, 5365700), (5, 4292560), (8, 2682850), (10, 2146280), (16, 1341425), (20, 1073140), (25, 858512), (40, 536570), (50, 429256), (80, 268285), (100, 214628), (200, 107314), (400, 53657)]